Threaded inline swivel

ABSTRACT

A threaded inline swivel has a first nut and an opposite second nut each having the form of a generally hollow cylinder with an open end to receive fuel. Each nut has a collar that has a common nominal diameter. A collar provides at least two faces for gripping by a wrench. Each nut has threading for connection to a hose or other fitting. To further seal the swivel to a hose or a fitting, at least one O-ring and at least one gasket are provided as alternative embodiments. In a further alternate embodiment, the swivel has a threaded second nut and an opposite barbed end on the first nut with a clip. The first nut has its chamber that constricts in diameter through a throat as it enters the second nut. The swivel in all embodiments provides for flow of fluid through it with little turbulence.

BACKGROUND OF THE INVENTION

This threaded inline swivel relates in general to means for connectingcoaxial hoses, fittings, and nozzles used by motorists for fueldispensing at a service station, and more specifically to improvementswithin the swivel allowing for concentric rotation of hoses, nozzles,and fittings connected thereto without leakage of fuel therefrom. Aunique aspect of the present swivel is a male nut that constricts itsinner diameter so that it fits within a female nut with reduceddisruption to fuel flow. This invention is especially useful whenapplied in a fuel line at its connection to a nozzle where the nozzlemay turn axially relative to the to hose.

Upon arriving at a pump of a service station, a motorist views a nozzleconnected to a length of hose, and the hose connected to the pump. Thelengths of hose, fittings, and nozzles require connection amongthemselves and to service station pumping facilities. Hoses extend fromfixed and rigid piping extending from the pump, generally concealed froma motorist. The hoses may extend from the side of the pump,approximately midway on its height or from overhead of the pump,descending to the typical usage height of a motorist. Hoses,manufactured to specific lengths, generally extend continuously from thepump to the nozzle. However, hoses, fittings, and nozzles interconnectin a generally linear path for conveying fuel from the pump to themotorist's fuel tank. At a service station, the nozzle enters themotorist's fuel tank at one angle while the hose extends from the pumpat a different angle. Though hoses and select fittings can twist to adegree and accommodate the difference in angles, in time hoses wherefrom such twisting. Where a hose connects to a rigid fitting, thefitting may not tolerate such a change in angles through the hose to it.

Further, numerous swivels in the prior art furnish rotation betweenconnected hoses and fittings, and more particularly, such swivelsnormally see use in lines containing fuel. Generally swivels have use inthose situations where the fuel line leads from a fuel dispenser to anozzle.

Swivels also encounter forces imposed upon them by the service stationenvironment, often errant motorists. Swivels may endure unbalancedinternal forces as in a nuisance break or drive off. In such a nuisancebreak, greater fluid forces are exerted in one direction upon one partof the swivel than upon the other. When spontaneous and unbalanced highpressures are encountered, the pressure exerted upon one component ofthe swivel in one direction, substantially differs from the fluidpressure that may be exerted upon the other components of the swivel,and therefore, this pressure disparity tends to increase the risk ofpremature separation or failure of a swivel, in an untimely anddangerous fashion. This can and has occurred particularly where thefluid pressure in the hose may undergo a phenomenon that is equivalentto “water hammer.”

The lengths of hose, fittings, and nozzles require connection amongthemselves and to service station pumping facilities. Hoses, fittings,and nozzles have swivels, often near the pump, that rotate when anerrant motorist drives away with a hose in a vehicle, and thus prevent aspill or worse a fiery catastrophe. Until such an event, a swivel joinstwo sections of a fueling line or fittings and permits passage of fueltherethrough. As fuel pumps through the flow line, pressure spikessignificantly and substantially throughout the hose, momentarily, andeven at the location of a swivel, as when the flow is suddenly stopped,as for example, by the automatic shutoff by a nozzle when the fuel tankis full. Hence, leakage at such couplers has frequently occurred in thefield, and on occasion, as previously explained, untimely separation ordamage of the swivel has happened.

Also, where a hose connects to a nozzle or to a fitting, a swivel joinsthe two adjacent components for continuous flow there through whileallowing for coaxial rotation.

DESCRIPTION OF THE PRIOR ART Other patents that show various relatedswivels include the Pat. No. Des. 268,612 to Sutcliffe disclosing aswivel connector for hoses. This connector shows a threaded male endrotatably connected to a female end. The axis of rotation for thisconnector is generally perpendicular to the direction of flow throughit. The male end rotates at an angle to the female end, similar to anelbow bending, so that connected hoses also bend.

Another swivel connector appears in U.S. Pat. No. 4,615,547 to Sutcliffeand Fink. This connector has a pair of swivel connectors joined upon acommon boss. One swivel rotates upon an axis general perpendicular tothe flow direction. Each connector has a male end with a threaded swivelnut thereon and an opposite female end with a thread fitting engagedtherein. Each swivel alters the flow path through an approximate ninetydegree bend and offsets the flow approximately one half of the diameterof the female end. The male end also rotates at an angle to the femaleend much like a bending elbow, so that hoses connected thereto alsobend. In bending similar to a hinge, the swivels cause hoses, fittings,and nozzles to attain a non-linear flow path that may affect fuel flow.The hinge like bending also causes the connected parts to occupyslightly more space in the compact service station environment.

The present invention overcomes the limitations of the prior art. Where,the present invention, a threaded inline swivel, uses coaxial male andfemale nuts that mutually rotate upon an axis parallel to the length ofthe swivel and the direction of flow.

SUMMARY OF THE INVENTION

A threaded inline swivel begins with a male nut and an opposite femalenut each having the form of a generally hollow cylinder with an open endto receive and to dispense fuel. The male nut and the female nut eachhave a collar that has a common diameter. Each collar provides at leasttwo faces for gripping of the adaptor by a wrench or other tool. Themale nut and the female nut each have threading for connection to a hoseor other fitting. Within the interior of the swivel, the two ends of themale nut and the female nut open into a smooth walled chamber thatallows for uninterrupted fluid flow. To further seal the connection ofthe swivel to a hose or a fitting, at least one O-ring and at least onegasket are provided as alternative embodiments. In a further alternateembodiment, the swivel has a threaded female nut and an opposite barbedend on the male nut with a clamp. The male nut has its chamber thatconstricts in diameter through a throat as it enters the female nut. Theswivel in all embodiments provides for flow of fluid through it with fewif any turbulent effects.

Generally, the threaded ends of the nuts simply turn into cooperatingfemale threaded hoses and fittings. A user places a tool upon the collarthus gripping the male nut, the female nut, or both for installation ofa second hose or fitting at low labor and equipment cost. Cooperatingraces upon the male nut and the female nut and various size bearingskeep the nuts connected but allow for coaxial rotation parallel to thelength of the swivel and fluid flow. Strategically located O-ringsprovide for fluidic sealing of the swivel to various hoses and fittingsin the flow line from a fuel pump. The present invention does notrequire the use of any strong biasing springs, or other mechanisms, toprovide for its quick and simple installation.

Therefore, it is an object of the invention to provide a new andimproved threaded inline swivel for fuel nozzles, fittings, hoses, andlines.

It is a further object of the present invention to connect two fluidtransmitting items generally coaxially for minimal turbulent flow.

It is a further object of the present invention to provide a threadedinline swivel that allows for grasping by a tool upon its center.

It is a further object of the present invention to dissipate any abruptpressure spikes generated within the threaded inline swivel during itsfunctioning within a flow line thus preventing undesirable fuel leakageor untimely separation of hoses and fittings.

Another object of this invention is to provide a threaded inline swivelwhere it's sealing O-rings and gaskets are normally located within seatsand cooperating with threads respectively during normal and routineusage of the adaptor when installed within a fluid flow line.

Another object is to provide such a threaded inline swivel capable ofconnecting to a variety of hoses and fittings having female ends,threaded and unthreaded.

Another object is to provide such a threaded inline swivel that has alow cost of manufacturing so the purchasing people and organizations canreadily buy the adaptor through stores and supply sources.

These and other objects may become more apparent to those skilled in theart upon review of the invention as described herein, and uponundertaking a study of the description of its preferred embodiment, whenviewed in conjunction with the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

In referring to the drawings,

FIG. 1 shows a side view of the swivel of the present invention;

FIG. 2 shows a partial cut away view of the swivel;

FIG. 3 shows a sectional view of the swivel with fluid flow to theright;

FIG. 4 describes an end view of the swivel;

FIG. 5 shows an exploded view of the two fittings of the swivel;

FIG. 6 describes a top view of the O ring and gasket for the alternateembodiments of the present invention;

FIG. 7 shows a sectional view of the gasket;

FIG. 8 shows a detailed view of the edge of the perimeter of the gasket;

FIG. 8 a provides a detailed view of an alternate embodiment of the edgeof the perimeter of the gasket;

FIG. 8 b provides a detailed view of an alternate embodiment of the edgeof the perimeter of the gasket;

FIG. 8 c provides a detailed view of an alternate embodiment of the edgeof the perimeter of the gasket;

FIG. 8 d provides a detailed view of an alternate embodiment of the edgeof the perimeter of the gasket;

FIG. 9 shows a side view of an alternate embodiment of the swivel;

FIG. 10 shows a partial cut away view of an alternate embodiment of theswivel;

FIG. 11 shows a sectional view of an alternate embodiment of the swivel;

FIG. 12 describes an end view of the swivel;

FIG. 13 shows an exploded view of the two nuts of an alternateembodiment of the swivel;

FIG. 14 shows a side view of a second alternate embodiment of theswivel;

FIG. 15 shows a partial cut away view of a second alternate embodimentof the swivel;

FIG. 16 shows a sectional view of a second alternate embodiment of theswivel;

FIG. 17 describes an end view a second alternate embodiment of theswivel; and,

FIG. 18 shows an exploded view of the two nuts of an alternateembodiment of the swivel.

The same reference numerals refer to the same parts throughout thevarious figures.

DESCRIPTION OF THE PREFERRED EMBODIMENT

The present art overcomes the prior art limitations of various swivelsby providing a swivel that allows for coaxial rotation of two halves andincludes a tapered throat to minimize adverse fluid flow effects. Thepresent invention 1 appears in FIG. 1, and has a generally hollowcylindrical form with a first end 2 and an opposite second end 3. Asshown both ends 2, 3, have external threads 4, here shown as right hand,coarse. The threads continued for approximately four revolutions aroundthe circumference of the ends. The threads extend inwardly upon a firstnut 5 and an opposite second nut 6. The first nut and the second nut arehollow and have sufficient length for a solid connection of the swivelto a hose or other fitting. The first nut also has a tip 15 here shownslightly extending from the threads of the second end towards the rightof the figure. The tip will be further shown in FIGS. 3, 5. Inwardly,each nut has a notch upon its perimeter, a first notch 7 at the end ofthe threads 4 on the first nut 5, and a second notch 8 opposite thefirst notch where the threads 4 end on the second nut 6. The notches 7,8 have a lesser diameter than the threads 4 and the ends 2, 3. Definingone side of each notch and opposite the threads, each nut has a collar.The first nut has a first collar 9 of a diameter noticeably greater thandiameter of the threads. The collar has a thickness, along the length ofthe swivel, suitable for gripping by a tool, such as a wrench or channellock pliers. The collar extends around the circumference of the swivel,that is, perpendicular to the length of the swivel. The collar isgenerally round but for at least two faces 9 a. The second nut has asecond collar 16 also of a diameter noticeably greater than diameter ofthe threads and generally the same diameter as the first collar foroverall smoothness of the swivel. This collar also has a thickness, andfaces 9 a suitable for gripping by a tool, such as a wrench or channellock pliers. The second collar also includes a cap 17 generally centeredin one face 9 a. The cap covers the aperture in the second collar foradmission of bearings as later shown in FIG. 2. As an alternateembodiment, the adaptor includes at least one O-ring 10 and at least onegasket 11. The O-ring has a generally O shape as later shown in FIG. 6and a rounded cross section. The gasket also has a generally roundedshape as shown later in FIG. 6 but with a squared cross section.

Turning the swivel axially one quarter turn downward from FIG. 1, FIG. 2shows the swivel 1 with the faces 9 a downwardly and the cap at thelowest to portion of the swivel. This figure shows a partial sectionthrough the collars 9, 15, more and so on the second collar 15 alongline A-A. Inwardly from the cap, the second collar has an aperture 20into which fits the cap 17 and a first bearing 18. The first bearingremains sandwiched between the collar and a portion of the first nut aslater shown in FIG. 3. To the left of the bearing in the figure, thefirst nut is includes a first O ring 19. The first O ring 19 occupiesthe corner formed from the inner edge of the second nut and the insidecorner of the first nut, also as later shown in FIG. 3. With the cap inplace, the first bearing remains in place. With the cap removed, thefirst bearings can exit the second nut or alternatively be installedinto the second nut.

FIG. 3 provides a longitudinal section view through the swivel with thefirst nut connected to the second nut: As above, the first nut 5 has anopen end 2 that has external threads 4. Inward of the threads, the firstnut has the first notch 7 and then the collar 9. Forward of the collar,the first nut has its neck 22 that fits within the length of the secondnut. The neck generally has a slightly lesser diameter than the innerdiameter of the second nut. The neck also has a noticeably lesserdiameter than the end 2. Opposite the collar 9, the neck has the tip 15,here shown with a slight bevel to ease assembly. The neck is also agenerally hollow cylinder forming a chamber 23 through which fuel flows.The chamber has a narrow diameter within the neck and then a widerdiameter proximate the end 2. The chamber has a throat 24 having thewidest diameter of the chamber and locating inwardly from the end 2 toapproximately where the collar adjoins the first notch. The widestdiameter is shown as line 24 a. Inward of the widest diameter, thethroat curves in a slightly concave manner for a short distance to thesecond widest diameter, line 24 b. From that line, the throat has itsdiameter decrease in a linear manner going forward to the neck to line24 c, the third widest diameter. Inward of the third diameter, thethroat curves in a slightly convex manner for a short distance to attainthe inner diameter of the neck as at line 24 d. The transition inchamber diameter from the throat 24 to the neck 22 occurs over a portionof the first nut call the constriction 25. The constriction to reducesthe diameter of the throat by approximately 40% as it transitions to thediameter of the neck. The constriction, being hollow and round like thethroat and the neck allows for the passage of fuel through it at theleast amount of adverse fluid flow effects. Outwardly from theconstriction towards the neck, the neck includes a race 21 of a suitablewidth to admit the first bearings 18.

And as above, the second nut 6 has its second end 3 here shown to theright, proximate the emplaced tip 15. The second end is generally hollowfor admission of the neck therein. The second end has its externalthreads 4, the second notch 8, and the second collar 16. Within thesecond nut, the second end has a second race 26, a third race 27, and afourth race 28 mutually spaced apart and concentric. The second race andthe third race extend outwardly into the end to admit the second O-ring29 and the third O-ring 30. The second and third O-rings have an innerdiameter slightly smaller than the outer diameter of the neck for a snugfit, preventing fuel leakage. Away from the end and generally inside ofthe threads, the second nut has the fourth race 28 that extendsoutwardly into the nut more than the second and third races. The fourthrace admits the second bearings 31 that contact the surface of the neck,allowing rotation of the neck of the first nut relative to the secondnut. Then within the collar 16, the second nut also has the fifth race32 that admits the first bearings 18, once more for rotation of the twocomponents of the invention. Generally, the first bearing 18 has alarger diameter than the second bearing 31. And outwardly from the fifthrace, the second collar and the first collar, outwardly from the line 24c, have the first O ring 19 locating between the two collars.

This embodiment of the inline swivel has a generally round shape whenviewed on end in FIG. 4. The inline swivel 1 has its second nut 6 withthe second collar 16 that generally defines the maximum diameter, thatis, width of the swivel as seen by the motorists after its installation.The collar, generally round, has two spaced apart and mutually parallelfaces 9 a. The faces allow for a tool, such as a wrench or channel lockpliers, to grip the second nut 6 of the inline swivel. The tool theneither turns the second nut into a hose or fitting, or holds the secondnut to steady as a hose or fitting turns upon either stem. Steppedinwardly from the collar's diameter, the second nut has its threads, asat 4, here shown in an end view of the end itself 3. In the centerforeground of the figure within the end, the neck 22 extends outwardlyfrom the end, that is, out of the plane of the figure. The tip isgenerally beveled, as previously shown in FIG. 3. Within the tip, the isneck has the chamber 23 through which fuel flows from the first nutthrough the second nut.

FIG. 5 then shows the inline swivel 1 in an exploded view of the firstnut 5 and the second nut 6. The first nut 5 begins with its throat 24leading into the nut from the end 2. The end has threads 4 forconnection to a hose, fitting, or nozzle. The threads continue inwardlyto the first notch 7. The threads generally maintain a constant outerdiameter for the end while the throat has its constant inner diameterthrough the threaded portion of the end up to line 24 a within the firstnotch as previously shown. Inwardly from the first notch, the first nut5 expands in width at the first collar 9. The collar 9 is generallyround except for the two flat, mutually parallel faces 9 a suitable fora tool. The collar has a greater diameter than the threads 4 andgenerally establishes the maximum width of the swivel. Opposite thethreads, the neck 22 extends from the collar further inwardly of theinvention. The neck is generally a hollow cylinder of lesser diameterthan the threaded end 2. Proximate the collar, the neck has the race 21that receives the bearings 18. The race has a slight recess into thediameter of the neck, previously shown in FIG. 3, and fits between firststep 21 a and second step 21 b. The first step and the second step aremutually spaced apart bands having a thickness and a diameter greaterthan that of the neck. The first step and the second step extend aroundthe circumference of the neck and each has a generally square like crosssection. The spacing between the first step and the second steps isgenerally that of the diameter of the first bearings 18. Both the firststep and the second step have a position proximate the collar 9 andremoved from the tip 15. Inwardly from the race 21, the neck extends toits maximum length shown at the tip 15. The tip has a beveled surface atthe terminus of the first nut 5 opposite the end 2. Outwardly from thefirst nut, the swivel has the first O-ring 19 with an inner diameterthat fits snugly upon the first step 21 a contiguous with the collar.The first O-ring has a generally round shape and a round cross section.Then outwardly from the first O-ring, the swivel includes a set of firstbearings 18, approximately 0.125 inch to approximately 0.3 inch indiameter, preferably 0.1875 inch in diameter. Though this figure showsten first bearings, the preferred embodiment includes fifteen firstbearings generally positioned within the race 21, as previously shown inFIG. 3.

Outwardly from the first bearings 18, the swivel has the second nut 6with its second collar 16. The second collar has a generally round shapeexcept for two flat faces 9 a. Centered within the second collar, around aperture 32 has a diameter similar to that of the first step 21 a.The aperture's diameter admits the neck 22 into the second nut. Inwardlyfrom the aperture, the second collar has a third step 33 that increasesthe thickness of the second nut proximate the threads. The third stephas an inner diameter similar to the outer diameter of the neck 22 andless than the diameter of the second step 21 b. Inwardly from the secondstep, the second nut continues in a hollow cylindrical manner towardsend 3. Proximate the second end 3 and interiorly, the second nut has thefourth race 28, generally of greater diameter than the third step thatreceives the second bearings 31, and the second race 26 and the thirdrace 27 that receive O-rings 29, 30 as previously shown in FIG. 3. Andoutwardly from the end 3, the swivel includes second bearings 31, secondO-ring 30, and third O-ring 29 shown concentrically. Though the figureshows fourteen bearings, the preferred embodiment includes twenty twosecond bearings. The second bearings have a diameter of approximately0.0625 inch to approximately 0.25 inch. The second and third O-ringshave an inner diameter similar to the outer diameter of the neck, around shape, and a generally round cross section.

Generally for closing off the threaded connection of a hose or fittingto the swivel 1 proximate the notches 7, 8, the adaptor provides thegasket 5 and an additional O-ring 10 as shown in FIG. 6. The O-ring 10is generally round within an inner edge 10 a at an inner diameter and anouter edge 10 b at an outer diameter greater than the inner diameter.The O-ring has a generally round cross section, radially, between theinner edge and the outer edge. The inner diameter is generally slightlymore than the diameter of the adaptor at the notches but less than thediameter of the thread 4. The O-ring has a material that allows forslight stretching for placement over the threads and compression by ahose or other fitting when connected thereto. Alternatively, the swivelhas the gasket 11, generally round, with an inner rim 11 a at an innerdiameter and a rim 11 b at the outer diameter of the gasket. The innerdiameter of the gasket generally exceeds that of the O-ring 10. Theinner rim and rim of the gasket form a generally square cross section aslater shown in FIG. 7. Upon the inner rim, the gasket has a plurality ofspaced flutes 13. Here the flutes have a generally semi-circular shapeextending inwardly into the gasket, towards its nominal center. Theradius of each flute begins at the inner rim and turns through 180degrees of arc. Preferably, the gasket has an even number of flutes,here shown as six. The flutes engage the threads 4 of each stem 5, 6 andallow a user to rotate the gasket to a desired position upon the stem.Either gaskets or O-ring are used, but not both. Alternatively, thegasket has an odd number of flutes to preventing jamming of the gasketduring turning upon the threads 4.

FIG. 7 then shows a cross sectional view of the gasket 11. The gaskethas the rim 11 b that faces outwardly from the gasket and swivel wheninstalled, and the opposite inner rim 11 a upon the interior of thegasket. Perpendicular to the rim and the inner rim, an edge 5 c joinsthe two rims upon both sides of the gasket. The edges and the two rimsgenerally form a square cross section as shown in the top and the bottomof the figure. Upon the inner rim, the gasket has the flutes 13,generally equally spaced. Each flute has a thin tip 13 a away from theinner rim than merges with shoulders 13 b of greater thickness than thetip. The shoulders join to the inner rim. The flutes and the tips extendinwardly, that is, away from the inner rim.

FIG. 8 then shows the perimeter of the gasket more closely. Thoughshowing a portion of the perimeter in this figure, the structure extendsupon the entire perimeter of the gasket. The gasket has the inner rim 11a with a flute 13, rim 11 b, and edge 5 c as before. The rim though inthis embodiment has a slight slope 5 d, extending from left to right inthe figure. The slope is approximately 1 to 4 degrees and oriented sothat the bottom of the slope advances towards the collar upon turningthe gasket on a stem. The edge 5 c further includes a taper 5 epartially along the length of the edge. The taper begins at thethickness of the gasket and then narrows slightly about midway along theedge.

Another form of the edge 5 c appears in FIG. 8 a with a perimetersectional view. The gasket begins with a flute 13 upon the inner rim 11a with the opposite, or outwardly, rim 11 b as before. The rim has itsslope 5 d outwardly from the inner rim similar to that shown in FIG. 8.Unlike the smooth edges 5 c, this embodiment has three mutually spacedapart barbs 14 here shown in section. The barbs appear as concentricrings upon the edges when seen as in FIG. 6. The barbs, as a group,extend at least midway from the inner rim to the rim. The barbs havetheir narrowest portion outwardly towards the rim and their thickerportion inwardly towards the inner rim. Outwardly from the barbs 14, thegasket has a tip 5 f generally proximate the rim. The tip generallylacks barbs or other securing surface features. FIG. 8 b orients thesectional view to a flat orientation as a hose or fitting would abut thegasket. In FIG. 8 b though, the rim 11 b at the tip 5 f is generallysquare, or without a slope. This figure also shows a partial section ofa flute where the tip extends inwardly from the shoulders.

A third form of the edge 5 c appears in FIG. 8 c, also in a perimetersectional view. The gasket has its flute extending inward from the innerrim 11 a with the opposite, or outwardly, rim 11 b as before. The rimhas its slope 5 d outwardly from the inner rim similar to that shown inFIG. 8. This embodiment also has three mutually spaced apart barbs 14here shown in section. The barbs appear as concentric rings upon theedges when see as in FIG. 6. These barbs, as a group, span from theinner rim to the rim. The barbs have their narrowest portion outwardlytowards the rim and their thicker portion inwardly towards the innerrim. In this embodiment, the gasket lacks a tip as in the previousembodiments of the edges. FIG. 8 d orients the sectional view to a flatorientation as a hose or fitting would abut the gasket. Similar to FIG.8 b, the rim 11 b is generally square, or without a slope. The rim alsotruncates the outer barb on the top and bottom edges. This figure alsoshows a partial section of a flute where the tip extends inwardly fromthe shoulders.

A second embodiment of the swivel appears in FIG. 9 in a side view. Thisswivel 1 also has a generally hollow cylindrical form with a first end 2and an opposite second end 3. As shown both ends 2, 3, have externalthreads here shown as right hand. The threads continue for approximatelyfive revolutions around the circumference of the ends. The threadsextend inwardly upon the first nut 5 and an opposite second nut 6. Thefirst nut and the second nut are hollow and have sufficient length for asolid connection of the swivel to a hose or other fitting. The threadsupon the first nut, as at 4, have generally coarse form while thethreads upon the second nut, as at 4 a, have generally fine form.Outwardly from the threads 4 a of the second nut 6, the tip 15 of theneck 22 of the first nut 5 extends.

Inwardly, each nut has a notch, a first notch 7 at the interior endingof the threads 4 on the first nut 5. The second nut 6 also has a flange35 inwardly of the interior ending of the threads 4 a and a second notch8 inwardly of the flange opposite the first notch where the threads 4 aend on the second nut 6. The notches 7, 8 have a lesser diameter thanthe threads 4, 4 a and the ends 2, 3. The second notch 8 receives afourth O-ring 34 upon its circumference. This O-ring has a generallyround shape with a round cross section. This O-ring has an outerdiameter similar to the outer diameter of the flange. Centered betweenthe two stems, this embodiment of the swivel also has a collar 9 on thefirst nut 5 and a second collar 16 on the second nut 6. Each collar hasa diameter noticeably greater than diameter of the threads. Each collarhas a thickness, along the length of the swivel, suitable for grippingby a wrench or other tool. Each collar extends around the circumferenceof the swivel, perpendicular to the length of the swivel. The collar isgenerally round except for two faces 9 a later shown in FIG. 9. Thesecond collar 16 also includes the cap 17 upon the aperture 20 forinsertion of the first bearings 18 into the invention. As an alternateembodiment, the swivel includes at least one gasket 11 that has agenerally rounded shape as previously shown in FIGS. 4, 5 with thevariations shown in FIGS. 6-8 d.

Turning the swivel axially one quarter turn downward from FIG. 9, FIG.10 shows this alternate embodiment of the swivel 1 with the faces 9 adownwardly and the cap at the lowest portion of the swivel. This figureshows a partial section through the collars 9, 16, more and so on thesecond collar 16 along line A-A. Inwardly from the cap, the secondcollar has the aperture 20 into which fit the cap 17 and the firstbearings 18. The first bearing remains sandwiched between the collar anda portion of the first nut as later shown in FIG. 11. To the left of thebearing in the figure, the first nut includes a first O ring 19. Thefirst O ring 19 occupies the corner formed from the inner edge of thesecond nut and the inside corner of the first nut, also as later shownin FIG. 11. With the cap in place, the first bearings remain in place.With the cap removed, the first bearings can exit the second nut oralternatively be installed into the second nut.

Within its interior, the swivel provides for flow of fluid, mostly fuel,as shown in FIG. 11, a longitudinal section view through the swivel withthe first nut connected to the second nut. As above, the first nut 5 hasan open end 2 that has external threads 4. The first end includes aslight inward bevel 10 that extends around the circumference of thefirst end. Inward of the threads, the first nut has the first notch 7and then the first collar 9. Forward of the collar, the first nut hasits neck 22 that fits within the length of the second nut. The neckgenerally has a slightly lesser diameter than the inner diameter of thesecond nut. The neck also has a noticeably lesser diameter than the end2. Opposite the collar 9, the neck has the tip 15, here shown to the farright with a slight bevel to ease assembly. The neck is also a generallyhollow cylinder forming a chamber 23 through which fuel flows. Thechamber has a narrow diameter within the neck and then a wider diameterproximate the end 2. The chamber has a throat 24 having the widestdiameter of the chamber and locating inwardly from the end 2 toapproximately where the collar adjoins the first notch. The widestdiameter is shown as line 24 a. Inward of the widest diameter, thethroat curves in a slightly concave manner for a short distance to thesecond widest diameter, line 24 b. From that line, the throat has itsdiameter decrease in a linear manner going forward to the neck to line24 c, the third widest diameter. Inward of the third diameter, thethroat curves in a slightly convex manner for a short distance to attainthe inner diameter of the neck as at line 24 d. The transition inchamber diameter from the throat 24 to the neck 22 occurs over a portionof the first nut call the constriction 25. The constriction reduces thediameter of the throat by approximately 40% as it transitions to thediameter of the neck. The constriction, being hollow and round like thethroat and the neck allows for the passage of fuel through it at theleast amount of adverse fluid flow effects. Outwardly from theconstriction towards the neck, the neck includes a race 21 of a suitablewidth to admit the first bearings 18.

And as above, the second nut 6 has its second end 3 here shown to theright, proximate the emplaced tip 15. The second nut continues thehollow shape of the first end through to its opening at the second end3. The second end also has an inward bevel as at 10. The second end isgenerally hollow for admission of the neck therein. The second end hasits external threads 4 a, the second notch 8, and the second collar 16.The second threads have finer pitch than the threads upon the first nut.Inwardly from the second threads opposite the second end, the second nuthas the flange 35 upon its circumference. The flange has a generallysquare cross section as shown and a diameter greater than that of thethreads but less than that of the second collar 16. Between the flangeand the s second collar, the second nut has the second notch 8 thatreceives the fourth O-ring 34. The fourth O-ring has an outer diameterslightly more than the diameter of the flange 35.

Within the second nut, the second end has the second race 26, the thirdrace 27, and the fourth race 28 mutually spaced apart and concentric.The to second race and the third race extend outwardly into the end toadmit the second O-ring 29 and the third O-ring 30. The second and thirdO-rings have an inner diameter slightly smaller than the outer diameterof the neck for a snug fit, preventing fuel leakage. Away from the endand generally inside of the threads, the second nut has the fourth race28 that extends outwardly into the nut more is than the second and thirdraces. The fourth race admits the second bearings 31 that contact thesurface of the neck, allowing rotation of the neck of the first nutrelative to the second nut. Then within the collar 16, the second nutalso has the race 21 that admits the first bearings 18, once more forrotation of the two components of the invention. Generally, the firstbearing 18 has a larger diameter than the second bearing 31. The secondcollar and the first collar, outwardly from the race 21 and the line 24c respectively, have the first O ring 19 locating between the twocollars.

The second end opens into the second nut 6 that has the O-ring 19 uponthe second notch 8. As shown in this view, the second notch 8 has alarger diameter than the first notch 7, that is, the second notch isshallower than the first notch. The diameter of the second notch and theouter diameter of the O-ring cooperate so that the fourth O-ring remainswithin the diameter of the flange. In this view, the first end 2 admitsfuel into the first stem that flows smoothly through the second nut 6and out of the second end 3 where the smoothly flowing fuel passesthrough a chamber 23, generally a hollow cylinder, that extends throughboth stems 5, 6 and through the collar 16.

This alternate embodiment of the inline swivel has a generally roundshape when viewed on end in FIG. 12. The inline swivel 1 has its secondnut 6 with the second collar 16 that generally defines the maximumdiameter, that is, width of the swivel as seen by the motorists afterits installation. The collar, generally round, has two spaced apart andmutually parallel faces 9 a. The faces allow for a tool, such as awrench or channel lock pliers, to grip the second nut 6 of the inlineswivel. The tool then either turns the second nut into a hose orfitting, or holds the second nut steady as a hose or fitting turns uponeither stem. Stepped inwardly from the collar's diameter, the second nut6 has the fourth O-ring 34 extending slightly outwardly from the flange35. Inside of the flange, the second nut has its threads, as at 4 a,here shown in an end view of the end itself 3. In the center foregroundof the figure within the end, the neck 22 extends outwardly from theend, that is, out of the plane of the figure. The tip is generally isbeveled, as at 10 and as previously shown in FIG. 3. Within the tip, theneck has the chamber 23 through which fuel flows from the first nutthrough the second nut.

FIG. 13 then shows the alternate embodiment of the inline swivel 1 in anexploded view with the first nut 5 to the left and the second nut 6 tothe right. The first nut 5 begins with its throat 24 leading into thenut from the end 2. The end has threads 4 for connecting to other items.The threads continue inwardly to the first notch 7. The threadsgenerally maintain a constant outer diameter for the end while thethroat has its constant inner diameter through the threaded portion ofthe end up to line 24 a, as previously shown. Inwardly from the firstnotch, the first nut 5 expands in width at the first collar 9. Thegenerally round collar 9 has two flat, mutually parallel faces 9 asuitable for a tool. The collar has a greater diameter than the threads4 and generally establishes the maximum width of the swivel. Oppositethe threads, the neck 22 extends from the collar further inwardly of theinvention. The neck, a generally hollow cylinder has lesser diameterthan the threaded end 2. Proximate the collar, the neck has the race 21that receives the bearings 18. The race has the slight recess into thediameter of the neck, previously shown in FIG. 11, and fits betweenfirst step 21 a and second step 21 b. The first step and the secondstep, mutually spaced apart bands, have a thickness and a diameterexceeding the neck's. The first step and the second step extend aroundthe circumference of the neck and each has a generally square like crosssection. The spacing between the first step and the second steps isgenerally that of the diameter of the first bearings 18. Both the firststep and the second step have a position proximate the collar 9 andremoved from the tip 15. Inwardly from the race 21, the neck extends toits maximum length shown at the tip 15. The tip has a beveled surface,as at 10, at the terminus of the first nut 5 opposite the end 2.Outwardly from the first nut, this alternate embodiment of the swivelhas the first O-ring 19 with an inner diameter that fits snugly upon thefirst step 21 a contiguous with the collar. The first O-ring has agenerally round shape and a round cross section. Then outwardly from thefirst O-ring, the swivel includes a set of first bearings 18,approximately 0.125 inch to approximately 0.3 inch in diameter,preferably 0.1875 inch in diameter. Though this figure shows ten firstbearings, the preferred embodiment includes fifteen first bearingsgenerally positioned within the race 21, as previously shown in FIG. 11.

Outwardly from the first bearings 18, this alternate embodiment of theswivel has the second nut 6 with its second collar 16. The secondcollar, generally round, has two flat faces 9 a. Centered within thesecond collar, a round aperture 32 has a diameter similar to that of thefirst step 21 a. The aperture's diameter admits the neck 22 into thesecond nut. Inwardly from the aperture, the second collar has a thirdstep 33 that increases the thickness of the second nut proximate thethreads. The third step has an inner diameter similar to the outerdiameter of the neck 22 and less than the diameter of the second step 21b. Outwardly from the third step and opposite the second collar 16, thesecond nut 6 has the second notch 8 and the flange 35 inwardly of theinterior ending of the threads 4 a. As before the notches 7, 8 have alesser diameter than the threads 4, 4 a and the ends 2, 3. The secondnotch 8, in this alternate embodiment, receives a fourth O-ring 34around its circumference. This O-ring has a generally round shape with around cross section. This O-ring has an outer diameter similar to theouter diameter of the flange.

Inwardly from the second step, the second nut continues in a hollowcylindrical manner towards end 3. Proximate the second end 3 andinteriorly, the second nut has the fourth race 28, generally of greaterdiameter than the third step that receives the second bearings 31, andthe second race 26 and the third race 27 that receive O-rings 29, 30 aspreviously shown in FIG. 11. And outwardly m from the end 3, the swivelincludes second bearings 31, second O-ring 30, and third O-ring 29 shownconcentrically and these two O-rings, 29, 30 have a lesser diameter thanthe fourth O-ring. Though the figure shows fourteen second bearings, thepreferred embodiment includes twenty two second bearings 31. The secondbearings have a diameter of approximately 0.0625 inch to approximately0.25 inch. The second and third O-rings have an inner diameter similarto the outer diameter of the neck, a round shape, and a generally roundcross section.

The present invention 1 appears in FIG. 14 as a second alternateembodiment. This embodiment also has a generally hollow cylindrical formwith a first end 2 and an opposite second end 3. As shown the second end3 has external threads 4 a, here shown as right hand, coarse. Thethreads continue for approximately four revolutions around thecircumference of the second end. The threads extend inwardly upon thesecond nut 6. However, the first end 2 includes three barbs 37 arrangedconcentrically and inwardly from the end 2. The barbs have a generallytruncated conical shape with the inner and smaller diameter locatingtowards the end and the outer and wider diameter locating away from theend. The alternate embodiment has three barbs shown however, additionalbarbs may be provided to match hose diameter and material as needed. Thebarbs extend along a second neck 36 generally a hollow cylinder ofconstant diameter. The second neck has approximately the same length asthe combined length of the barbs. The second neck extends into the thirdcollar 38. The third collar has a generally round shape of greaterdiameter than the neck and a thickness less than the length of the neck.The barbs, second neck, and third collar form the first nut 5 of thisalternate embodiment.

The first nut and the second nut are hollow and have sufficient lengthfor a solid connection of the swivel to a hose or other fitting. Thefirst nut also has a tip 15 here shown slightly extending from thethreads of the second end 3 towards the right of the figure. The tipwill be further shown in FIGS. 16, 18. Inwardly, the second nut 6 has asecond notch 8 upon its perimeter at the end of the second threads 4 a,generally opposite the barbs 37. The second notch 8 has a lesserdiameter than the threads 4 a and the end 3. Defining one side of eachnotch and opposite the threads, each nut has a collar. The first nut hasa first collar 38 of a diameter noticeably greater than diameter of thebarbs 37. The collar has a thickness, along the length of the swivel,suitable for gripping by a tool, such as a wrench or channel lockpliers. The collar extends around the circumference of the swivel, thatis, perpendicular to the length of the swivel. The collar is generallyround. For further securement of a hose, this swivel includes a shortcylindrical clip 39, here shown as a band on edge. The clip has a widthmuch less than the length of the neck 36. The clip is generally roundwith a diameter exceeding that of the neck 36 and the barbs 37. Thesecond nut has a second collar 40 also of a diameter noticeably greaterthan diameter of the threads 4 a and more than the diameter as the firstcollar, providing an abutting face for when the first nut inserts intothe second nut. This collar 40 also has a thickness, and faces 9 asuitable for gripping by a tool, such as a wrench or channel lockpliers. The second collar also includes a cap 17. The cap covers theaperture in the second collar for admission of bearings as later shownin FIG. 15. As an alternate embodiment, the adaptor includes at leastone O-ring 10 and at least one gasket 11. The O-ring has a generally Oshape as previously shown in FIG. 6 and a rounded cross section. Thegasket also has a generally rounded shape as in FIG. 6 but with asquared cross section.

Turning the swivel axially one quarter turn downward from FIG. 14, FIG.15 shows the second alternate embodiment of the swivel 1 with the faces9 a downwardly and the cap at the lowest portion of the swivel. Thisfigure shows a partial section through the collars 38, 40 more soon thesecond collar 40 along line A-A. Inwardly from the cap, the secondcollar has an aperture 20, as later shown in FIG. 18, into which fitsthe cap 17 and a first bearing 18. The first bearing 18 remainssandwiched between the collar and a portion of the second nut as latershown in FIG. 16. To the left of the bearing in the figure, the secondnut includes a first O ring 19. The first O ring 19 occupies the cornerformed from the inner edge of the first nut and the inside corner of thesecond nut, also as later shown in FIG. 18. With the cap in place, thefirst bearings remain in place. With the cap removed, the first bearingscan exit the second nut or alternatively be installed into the secondnut.

FIG. 16 provides a longitudinal section view through this alternate isembodiment of the swivel with the first nut inserted into the secondnut. As above, the first nut 5 has an open end 2 that has concentricbarbs 37. Inward of the threads, the first nut has the neck 36 thatreceives the clip 39 and then the collar 38. Forward of the collar, thefirst nut has its neck, as at 22, that fits within the length of thesecond nut. The neck 22 generally has a slightly lesser diameter thanthe inner diameter of the second nut. The neck 22 also has a noticeablylesser diameter than the end 2. Opposite the collar 38, the neck 22 hasthe tip 15, here shown with a slight bevel to ease assembly. The neck,as at 22, is also a generally hollow cylinder forming a chamber 23through which fuel flows. The chamber has a narrow diameter within theneck and then a wider diameter proximate the end 2. The chamber has athroat 24 having the widest diameter of the chamber and locatinginwardly from the end 2 to approximately where the neck 36 joins to thecollar 38. The widest diameter is shown as line 24 a. Inward of thewidest diameter, the throat curves in a slightly concave manner for ashort distance to the second widest diameter, line 24 b. From that line,the throat has its diameter decrease in a linear manner going forward tothe neck to line 24 c, the third widest diameter. Inward of the thirddiameter, the throat curves in a slightly convex manner for a shortdistance to attain the inner diameter of the neck as at line 24 d. Thetransition in chamber diameter from the throat 24 to the neck 22 occursover a portion of the first nut call the constriction 25, mostly withinthe collar 38. The constriction reduces the diameter of the throat byapproximately 40% as it transitions to the diameter of the neck. Theconstriction, being hollow and round like the throat and the neck allowsfor the passage of fuel through it at the least amount of adverse fluidflow effects. Outwardly from the constriction towards the neck, theneck, as at 22, includes a race 21 of a suitable width to admit thefirst bearings 18.

And as above, the second nut 6 has its second end 3 here shown to theright, proximate the emplaced tip 15. The second end is generally hollowfor admission of the neck 22 therein. The second end has its externalthreads 4 a, the second notch 8, and the collar 40. Within the secondnut, the second end has is a second race 26, a third race 27, and afourth race 28 mutually spaced apart and concentric. The second race andthe third race extend outwardly into the end to admit the second O-ring29 and the third O-ring 30. The second and third O-rings have an innerdiameter slightly smaller than the outer diameter of the neck for a snugfit, preventing fuel leakage. Away from the end and generally inside ofthe threads, the second nut has the fourth race 28 that extendsoutwardly into the nut more than the second and third races. The fourthrace admits the second bearings 31 that contact the surface of the neck,allowing rotation of the neck, as at 22, of the first nut relative tothe second nut. Then within the collar 40, the second nut also has therace 21 that admits the first bearings 18, once more for rotation of thetwo components of the invention. Generally, the first bearing 18 has alarger diameter than the second bearing 31. And outwardly from the race21, the collars 38, 40, outwardly from the line 24 c, have the first Oring 19 locating between them.

This alternate embodiment of the inline swivel has a generally roundshape when viewed on end in FIG. 17, from end 2. The inline swivel 1 hasits collar 40 in the background that generally defines the maximumdiameter of this embodiment as seen by the motorists after itsinstallation and the first nut 6 with the collar 38 in the foreground.The collar 40 of the second nut 6, generally round, has two spaced apartand mutually parallel faces 9 a. The faces allow for a tool, such as awrench or channel lock pliers, to grip the second nut 6. The tool theneither turns the second nut into a hose or fitting, or holds the secondnut steady as a hose or fitting turns upon either nut. Stepped inwardlyfrom the larger collars, 40, diameter, the collar 38 of the first nut 5receives the clip 39. Within the clip as shown, the first nut has itsend 2 with the concentric barbs 37 here showing one on end. Inwardlyfrom the barbs, in the center foreground of the figure within the end,the neck 36 extends outwardly from the end, that is, out of the plane ofthe figure. The tip is generally beveled as previously shown. Within thetip, the neck has the throat 24 that leads into the constriction 25 andthen to the chamber 23 in the background through which fuel flows fromthe first nut through the second nut.

FIG. 18 then shows the alternate embodiment of the inline swivel 1 in anexploded view with the first nut 5 to the left and the second nut 6 tothe right. The first nut 5 begins with the clip 39 here shown outwardlyfrom the end 2 and its throat 24 leading into the nut. The end has barbs37 for receiving a hose that is then crimped upon the neck 16 using theclip. The barbs generally maintain a constant outer diameter for the endwhile the throat has its constant inner diameter through the threadedportion of the end up to line 24 a, as previously shown. Inwardly fromthe barbs, the first nut continues upon the neck 16 which then joins tothe collar 38 of a generally round shape. The collar has a greaterdiameter than the barbs 37. Away from the barbs and the neck as at 16,the neck 22 extends from the collar further inwardly of the invention.The neck 22, a generally hollow cylinder has lesser diameter than theneck as at 16. Proximate the collar, the neck has the race 21 thatreceives the bearings 18. The race has a slight recess into the diameterof the neck, previously shown in FIG. 16, and fits between first step 21a and second step 21 b. The first step and the second step, mutuallyspaced apart bands, have a thickness and a diameter exceeding the necksas at 22. The first step and the second step extend around thecircumference of the neck and each has a generally square like crosssection. The spacing between the first step and the second steps isgenerally that of the diameter of the first bearings 18. Both the firststep and the second step have a position proximate the collar 38 andremoved from the tip 15. Inwardly from the race 21, the neck 22 extendsto its maximum length shown at the tip 15. The tip has a beveledsurface, as at 10, at the terminus of the first nut 5 opposite the end2. Outwardly from the first nut in this view opposite the clip, thisalternate embodiment of the swivel has the first O-ring 19 with an innerdiameter that fits outwardly from the first step 21 a contiguous withthe collar 38. The first O-ring has a generally round shape and a roundcross section. Then outwardly from the first O-ring, the swivel includesa set of first bearings 18, approximately 0.125 inch to approximately0.3 inch in diameter, preferably 0.1875 inch in diameter. Though thisfigure shows ten first bearings, the preferred embodiment includestwelve first bearings generally positioned within the race 21, aspreviously shown in FIG. 11.

Outwardly from the first bearings 18, this alternate embodiment of theswivel has the second nut 6 with its collar 40. The collar 40, generallyround, has two flat faces 9 a. Centered within the collar, a roundaperture 20 has a diameter similar to that of the first step 21 a. Theaperture's diameter admits the neck 22 into the second nut. Inwardlyfrom the aperture, the second collar has a third step 33 that increasesthe thickness of the second nut proximate the threads. The third stephas an inner diameter similar to the outer diameter of the neck 22 andless than the diameter of the second step 21 b. Outwardly from the thirdstep and opposite the collar 40, the second nut 6 has the second notch 8inwardly of the interior ending of the threads 4 a. As before the notch8 has a lesser diameter than the threads 4 a and the end 3. The secondnotch 8, in this alternate embodiment, may receive an O-ring 10 orgasket 11 as needed during installation.

Inwardly from the second step, the second nut continues in a hollowcylindrical manner towards end 3. Proximate the second end 3 andinteriorly, the second nut has the fourth race 28, generally of greaterdiameter than the third step that receives the second bearings 31, andthe second race 26 and the third race 27 that receive O-rings 29, 30 aspreviously shown in FIG. 16. And outwardly from the end 3, the swivelincludes second bearings 31, second O-ring 30, and third O-ring 29 shownconcentrically. Though the figure shows fourteen second bearings, thepreferred embodiment includes seventeen second bearings 31. The secondbearings have a diameter of approximately 0.0625 inch to approximately0.25 inch. The second and third O-rings have an inner diameter similarto the outer diameter of the neck, a round shape, and a generally roundcross section.

From the aforementioned description, an inline swivel has beendescribed. This swivel is uniquely capable of connecting two femaleopenings is simultaneously for hoses, fittings, and combinationsthereof. This swivel also has cooperating collars locating proximate thecenter that allows rotation of the entire swivel as needed during itsinstallation. The collars also allow for gripping by a wrench or othertool. Though the swivel and other components are shown and describedwith round cross-sections, other cross-sections are possible inalternate embodiments. This swivel and its various components may bemanufactured from many materials including but not limited to polymers,low density polyethylene, high density polyethylene, polypropylene,nylon, ferrous and non-ferrous metals, their alloys, and composites.

Variations or modifications to the subject matter of this invention mayoccur to those skilled in the art upon reviewing the development asdescribed herein. Such variations, if within the scope of thisdevelopment, are intended to be encompassed within the principles ofthis invention, as explained herein. The description of the preferredembodiment, in addition to the depiction within the drawings, is setforth for illustrative purposes only.

1. An inline swivel connecting a hose, a fitting, a nozzle or otherattachment, comprising: a first nut and an opposite coaxial second nut,said first nut and said second nut having a generally hollow cylindricalshape, said first nut and said second nut mutually rotating about acommon longitudinal axis; a collar positioned upon said first nut havingat least two flat faces adapted to receive a tool; a second collarpositioned upon said second nut having at least two flat faces adaptedto receive a tool, at least one of said flat faces having an aperturefor receiving at least one ball bearing therein; a chamber extendingwithin said first nut, said collar, said second collar, and said secondnut, said chamber adapted to pass fluid there through; and, wherein atleast one of said first stem and said second stem have threadingthereon.
 2. The inline swivel of claim 1 further comprising: said firstnut having threads thereon, a notch of lesser diameter than said threadsbetween said threads and said collar, and a neck extending outwardlyfrom said threads and said collar, said neck having a lesser diameterthan said threads; said second nut having threads thereon and a notch oflesser diameter than said threads between said threads and said secondcollar opposite the notch of said first stem, said second nut admittingsaid neck of said first nut through the length of said second nut; atleast one O-ring fitting over said threads of one of said first nut andsaid second nut and within at least one of said notches; and, at leastone gasket engaging said threads of one of said first nut and saidsecond nut.
 3. The inline swivel of claim 1 further comprising: saidfirst nut and said second nut each having beveled ends outwardly fromsaid collar and said second collar generally leading into said chamber;said collar having two spaced apart and mutually parallel faces, saidfaces being generally parallel to the length of said swivel, said collarbeing round away from said faces; said second collar having two spacedapart and mutually parallel faces, said faces being generally parallelto the length of said swivel, said second collar being round away fromsaid faces, one of said faces having said aperture therein and a capupon said aperture; and, said chamber having a throat within said firstnut, said throat transitioning to a lesser diameter along a constrictioninto said neck.
 4. The inline swivel of claim 2 further comprising: saidgasket having an edge positioned upon the perimeter of said gasket, arim upon the perimeter and an inner rim opposite said rim, said innerrim having at least three flutes extending radially inward, said flutesadapted to engage said threads; and, said edge from said inner rim tosaid rim having one of a taper, slope, and at least two barbs.
 5. Theinline swivel of claim 1 further comprising: said first nut havingthreads thereon and a notch of lesser diameter than said threads andpositioning between said threads and said collar; said second nut havingsecond threads thereon, a flange extending around said second nut andoutwardly from said second nut generally parallel to said second collar,and a second notch of lesser diameter than said second threads and saidflange, said second notch positioning between said flange and saidcollar opposite the notch of said first stem; at least one O-ringfitting over said threads, inside of said flange, and said second notch;and, at least one gasket engaging said threads of one of said first nutand said second nut.
 6. The inline swivel of claim 5 further comprising:said first nut and said second nut each having beveled ends outwardlyfrom said collar and said second collar generally leading into saidchamber; said collar having two spaced apart and mutually parallelfaces, said faces being generally parallel to the length of saidadaptor, said collar being round away from said faces; said secondcollar having two spaced apart and mutually parallel faces, said facesbeing generally parallel to the length of said swivel, said secondcollar being round away from said faces, one of said faces having saidaperture therein and a cap upon said aperture; said second threadshaving a greater diameter than said first threads; and, said chamberhaving a throat within said first nut, said throat transitioning to alesser diameter along a constriction into said neck.
 7. The inlineswivel of claim 1 further comprising: said second nut having threadsthereon and a notch of lesser diameter than said threads positioningbetween said threads and said collar; said first nut having a lesserdiameter than said second nut, at least two barbs concentrically formedupon said first nut; and, at least one clip slipping over said first nutwherein said clip is adapted to compress a hose attached to said firstnut.
 8. The inline swivel of claim 7 further comprising: said first nutand said second nut each having beveled ends outwardly from said collarand said second collar generally leading into said chamber; and, saidchamber having a smooth first portion within said first nut and saidcollar and a smooth second portion within said second collar and saidsecond nut, said second portion having a lesser diameter than said firstportion, said first portion abutting said second portion at a stepwithin said collar.
 9. The inline swivel of claim 7 further comprising:at least one O-ring fitting over said threads of one of said first nutand said second nut and within said notches; and, at least one gasketengaging said threads.